English verb conjugation
CAN SHARK

Regular verb: shark - sharked - sharked

Affirmation

Simple form	V-ing form
I can shark you can shark he can shark we can shark you can shark they can shark	I can be sharking you can be sharking he can be sharking we can be sharking you can be sharking they can be sharking
Perfect	V-ing perfect
I can have sharked you can have sharked he can have sharked we can have sharked you can have sharked they can have sharked	I can have been sharking you can have been sharking he can have been sharking we can have been sharking you can have been sharking they can have been sharking

Negation

Simple form	V-ing form
I can't shark you can't shark he can't shark we can't shark you can't shark they can't shark	I can't be sharking you can't be sharking he can't be sharking we can't be sharking you can't be sharking they can't be sharking
Perfect	V-ing perfect
I can't have sharked you can't have sharked he can't have sharked we can't have sharked you can't have sharked they can't have sharked	I can't have been sharking you can't have been sharking he can't have been sharking we can't have been sharking you can't have been sharking they can't have been sharking

Interrogative form

Simple form	V-ing form
can I shark? can you shark? can he shark? can we shark? can you shark? can they shark?	can I be sharking? can you be sharking? can he be sharking? can we be sharking? can you be sharking? can they be sharking?
Perfect	V-ing perfect
can I have sharked? can you have sharked? can he have sharked? can we have sharked? can you have sharked? can they have sharked?	can I have been sharking? can you have been sharking? can he have been sharking? can we have been sharking? can you have been sharking? can they have been sharking?

Interro-negative form

Simple form	V-ing form
can't I shark? can't you shark? can't he shark? can't we shark? can't you shark? can't they shark?	can't I be sharking? can't you be sharking? can't he be sharking? can't we be sharking? can't you be sharking? can't they be sharking?
Perfect	V-ing perfect
can't I have sharked? can't you have sharked? can't he have sharked? can't we have sharked? can't you have sharked? can't they have sharked?	can't I have been sharking? can't you have been sharking? can't he have been sharking? can't we have been sharking? can't you have been sharking? can't they have been sharking?